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Height outboard motor bearing NA4904 Needle Roller Bearing Na4904 with size 20x37x18 mm NA series Needle Bearing
Thrust needle roller bearing
Needle bearings are a standard element of a rotational motion system. Needle bearings are used in applications where high load capacity, high precision and small overall dimensions are required. Nadella offers a big range of needle bearings. The strength of Nadella’s production consists also in the ability of producing special items at a reasonable price. Every bearing contains the long experience acquired from Nadella through decades of design, production and application.
NA series Needle roller bearing bearing desigination :
thrust needle roller bearing production:
| Drawn cup needle roller clruches | HF / HF..KF/HF..R/HFL/RCB/FCB/NHF |
| Mertic and inch drawn cup caged needle roller bearings | BK/HK/BK..RS/HK..RS/HK..2RS |
| Thrust needle / cylindrical roller bearing and cage assemblies | AXK/AX/AXW/AS/K811 K812/LS/GS |
| Radial needle roller and cage assemblies | K/KK/KZK/KBK |
| Radial needle roller bearings | NKI/NKIS/NA/NK/NKS/NA49..RS/RNA49..RS |
| Drawn cup line ball bearings | KH..2RS/KH |
| Yoke type track rollers/stud type track rollers | NATV/NATR/KR/KRV |
| Clutch bearing EWC series / 1wc series | EWC/1WC |
| Needel roller -cylindrical roller thrust bearings | RAX700/RAXF700/RAX400/RAX500 |
| Combined radial thrust bearings | ZARN/ZARF/ZARF..L |
| Single-direction load capailitya | NKIA |
| Needle rollers | NR(A SERIES) NR(B SERIES) |
| Inner ring | IR LR |
NA series cheap IKO Needle roller bearing series model :
| Boundary dimensions | Mass/g | NA Model | ||
| /mm | W | |||
| d | D | C | ||
| 10 | 22 | 13 | 24.3 | NA 4900 |
| 12 | 24 | 13 | 27.6 | NA 4901 |
| 24 | 22 | 46.9 | NA 6901 | |
| 15 | 28 | 13 | 35.9 | NA 4902 |
| 28 | 23 | 63.7 | NA 6902 | |
| 17 | 30 | 13 | 39.4 | NA 4903 |
| 30 | 23 | 69.9 | NA 6903 | |
| 20 | 37 | 17 | 79.9 | NA 4904 |
| 37 | 30 | 141 | NA 6904 | |
| 22 | 39 | 17 | 85.4 | NA 49/22 |
| 39 | 30 | 151 | NA 69/22 | |
| 25 | 42 | 17 | 94.7 | NA 4905 |
| 42 | 30 | 167 | NA 6905 | |
| 28 | 45 | 17 | 104 | NA 49/28 |
| 45 | 30 | 183 | NA 69/28 | |
| 30 | 47 | 17 | 108 | NA 4906 |
| 47 | 30 | 191 | NA 6906 | |
| 32 | 52 | 20 | 168 | NA 49/32 |
| 52 | 36 | NA 69/32 | ||
| 35 | 55 | 20 | 181 | NA 4907 |
| 55 | 36 | NA 6907 | ||
| 40 | 62 | 22 | 240 | NA 4908 |
| 62 | 40 | NA 6908 | ||
| 45 | 68 | 22 | 284 | NA 4909 |
| 68 | 40 | NA 6909 | ||
| 50 | 72 | 22 | 287 | NA 4910 |
| 72 | 40 | NA 6910 | ||
| 55 | 80 | 25 | 416 | NA 4911 |
| 80 | 45 | NA 6911 | ||
| 60 | 85 | 25 | 448 | NA 4912 |
| 85 | 45 | NA 6912 | ||
| 65 | 90 | 25 | 479 | NA 4913 |
| 90 | 45 | NA 6913 | ||
| 70 | 100 | 30 | 762 | NA 4914 |
| 100 | 54 | NA 6914 | ||
| 75 | 105 | 30 | 805 | NA 4915 |
| 105 | 54 | NA 6915 | ||
| 80 | 110 | 30 | 852 | NA 4916 |
| 110 | 54 | NA 6916 | ||
| 85 | 120 | 35 | 1280 | NA 4917 |
| 120 | 63 | NA 6917 | ||
| 90 | 125 | 35 | 1340 | NA 4918 |
| 125 | 63 | NA 6918 | ||
| 95 | 130 | 35 | 1410 | NA 4919 |
| 130 | 63 | NA 6919 | ||
| 100 | 140 | 40 | 1960 | NA 4920 |
| 140 | 71 | NA 6920 | ||
NA series bearing Needle roller bearing pictures :
